Abaixo está uma instrução que descreve uma tarefa de geração de SQL, combinada com uma entrada que fornece mais contexto sobre os esquemas de tabela disponíveis. Escreva o código SQL que responda adequadamente à solicitação
 ###Instrução: Quais comprimentos o Phoenix International Raceway sediou?
 ###Tabelas: CREATE TABLE grand_slam_men's_doubles_performance_timeline (grand_slam_men's_doubles_performance_timeline_id AUTO_INCREMENT PRIMARY KEY, Tournament VARCHAR, 1998 VARCHAR, 1999 VARCHAR, 2001 VARCHAR, 2002 VARCHAR, 2003 VARCHAR, 2004 VARCHAR, 2005 VARCHAR, 2006 VARCHAR, 2007 VARCHAR, 2008 VARCHAR, 2009 VARCHAR, 2010 VARCHAR, 2011 VARCHAR, 2012 VARCHAR, Career SR VARCHAR, Career Win-Loss VARCHAR) CREATE TABLE module_specifications (module_specifications_id AUTO_INCREMENT PRIMARY KEY, Designation VARCHAR, Bus width (bits) INT, Channels VARCHAR, Clock rate (MHz) INT, Bandwidth (MB/s) INT) CREATE TABLE schedule_and_results (schedule_and_results_id AUTO_INCREMENT PRIMARY KEY, Rnd INT, Date VARCHAR, Length VARCHAR, Race Name VARCHAR, Track VARCHAR, Location VARCHAR, Pole Position VARCHAR, Winning Driver VARCHAR) CREATE TABLE largest_margin_of_innings_victory (largest_margin_of_innings_victory_id AUTO_INCREMENT PRIMARY KEY, Score VARCHAR, Opposition VARCHAR, Venue VARCHAR, City VARCHAR, Year INT) CREATE TABLE tour_dates (tour_dates_id AUTO_INCREMENT PRIMARY KEY, Date VARCHAR, City VARCHAR, Country VARCHAR, Venue VARCHAR, Tickets available since VARCHAR, Attendance INT, Comment VARCHAR)  
SELECT Length FROM schedule_and_results WHERE Track = Phoenix International Raceway